Biomarkers for cardiovascular side-effects induced by cox-2 inhibitory compounds

摘要

Cardiovascular tissue mRNA expression profiles in monkeys treated with coxibs was analyzed. Genomic data indicated that the animals showing vasculitis exhibit a specific mRNA expression pattern. The pattern includes gene expression changes involved in blood and endothelial cell (EC) activation, interaction of blood cells with EC, activation of INF³ pathway, and release of pro-inflammatory cytokines and chemo-attractants. These results provide direct evidence of minimal vasculitis together with corresponding genomic signature and peripheral biomarkers for minimal vasculatis. These results also suggest that treatment might triggers/aggravate a clinically latent cardiovascular disorder in the context of an endothelium tropic viral infection and/or an autoimmune vascular disorder. The histopathological examination revealed marginal vascular changes consistent with the genomic findings. Measurement of soluble proteins present in serum and plasma using a multiplex assay were in line with the genomic results, showing the increased level of INF³ inducible proteins. Increased expression of CXCL10 chemokine was confirmed by an ELISA both in serum and plasma. Use of these peripheral biomarkers allows a safe usage of cox-2 inhibitory compounds in clinics and selection of cox-2 inhibitory follow-up compounds with no cardiovascular toxicity. These data together with biochemical and histopathological findings suggest that the specific cox2 inhibitor may exaggerate host immune response during some specific viral infections with endothelial tropism, or subjacent vascular autoimmune disorders.